clocksource: exynos_mct: use (request/free)_irq calls for local timer registration
Replace the (setup/remove)_irq calls for local timer registration with (request/free)_irq calls. This generalizes the local timer registration API. Suggested by Mark Rutland. Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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@ -400,18 +400,6 @@ static irqreturn_t exynos4_mct_tick_isr(int irq, void *dev_id)
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return IRQ_HANDLED;
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}
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static struct irqaction mct_tick0_event_irq = {
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.name = "mct_tick0_irq",
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.flags = IRQF_TIMER | IRQF_NOBALANCING,
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.handler = exynos4_mct_tick_isr,
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};
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static struct irqaction mct_tick1_event_irq = {
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.name = "mct_tick1_irq",
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.flags = IRQF_TIMER | IRQF_NOBALANCING,
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.handler = exynos4_mct_tick_isr,
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};
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static int __cpuinit exynos4_local_timer_setup(struct clock_event_device *evt)
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{
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struct mct_clock_event_device *mevt;
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@ -435,16 +423,15 @@ static int __cpuinit exynos4_local_timer_setup(struct clock_event_device *evt)
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exynos4_mct_write(TICK_BASE_CNT, mevt->base + MCT_L_TCNTB_OFFSET);
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if (mct_int_type == MCT_INT_SPI) {
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if (cpu == 0) {
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mct_tick0_event_irq.dev_id = mevt;
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evt->irq = mct_irqs[MCT_L0_IRQ];
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setup_irq(evt->irq, &mct_tick0_event_irq);
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} else {
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mct_tick1_event_irq.dev_id = mevt;
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evt->irq = mct_irqs[MCT_L1_IRQ];
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setup_irq(evt->irq, &mct_tick1_event_irq);
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irq_set_affinity(evt->irq, cpumask_of(1));
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evt->irq = mct_irqs[MCT_L0_IRQ + cpu];
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if (request_irq(evt->irq, exynos4_mct_tick_isr,
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IRQF_TIMER | IRQF_NOBALANCING,
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evt->name, mevt)) {
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pr_err("exynos-mct: cannot register IRQ %d\n",
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evt->irq);
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return -EIO;
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}
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irq_set_affinity(evt->irq, cpumask_of(cpu));
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} else {
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enable_percpu_irq(mct_irqs[MCT_L0_IRQ], 0);
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}
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@ -454,13 +441,9 @@ static int __cpuinit exynos4_local_timer_setup(struct clock_event_device *evt)
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static void exynos4_local_timer_stop(struct clock_event_device *evt)
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{
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unsigned int cpu = smp_processor_id();
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evt->set_mode(CLOCK_EVT_MODE_UNUSED, evt);
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if (mct_int_type == MCT_INT_SPI)
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if (cpu == 0)
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remove_irq(evt->irq, &mct_tick0_event_irq);
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else
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remove_irq(evt->irq, &mct_tick1_event_irq);
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free_irq(evt->irq, this_cpu_ptr(&percpu_mct_tick));
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else
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disable_percpu_irq(mct_irqs[MCT_L0_IRQ]);
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}
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